A system simple enough to run itself, until it grows
eBay began as a few rules and a way for users to rate each other, which let one person run it part time. Scale brought problems the simple system could not handle.
I built a system simple enough to sustain itself.
Pierre Omidyar put up AuctionWeb over a long weekend in September 1995, as a side project while he worked as a software engineer. Among the first things sold was a broken laser pointer, for a little under fifteen dollars, to a buyer who collected broken laser pointers. The site had few rules: sellers listed items, buyers bid, and the two parties settled between themselves. Omidyar did not check the goods, hold the money or resolve disputes.
When complaints about bad deals began to reach him, he did not hire staff to judge them. In early 1996 he added the Feedback Forum, where buyers and sellers could rate each other after each transaction, and asked users to work out problems directly and record the result. A seller with a long record of good ratings could be trusted by a stranger; a seller with bad ones would lose business. The community, in effect, policed itself. That design let Omidyar run a busy marketplace almost alone for its first year, and the site, renamed eBay, grew rapidly on the same basic structure.
The line describes a real engineering virtue. A system that depends on its founder’s constant attention cannot grow faster than the founder’s hours. A system whose participants carry the load, through reputation, clear rules and self-service, can grow almost without limit. Wikipedia’s editors and Craigslist’s users flagging bad posts work on the same principle.
It holds less well as the system gets large and valuable. Fraudsters learned to build up ratings with small sales before running off with large payments. Counterfeit goods became a persistent problem that required eBay’s own staff and years of legal disputes with brand owners. Payment between strangers was messy enough that eBay bought PayPal in 2002 for $1.5 billion to handle it. Today eBay employs thousands of people to do much of what the simple system once left to users.
None of that makes the early design wrong. A simple self-sustaining system is what lets a small project survive long enough to have large problems. The lesson is about sequence: start with rules that let users carry the load, and expect to add structure as the stakes rise. A founder who builds the heavy version first rarely has the time or money to find out whether anyone wanted it.